Invalid-bed.



PATENTED MAY 29, 1906.

G. HARDEN.

INVALID BBD.

APPLICATION FILED NOV. 23, 1905.

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No. 822,119. PATENTED MAY 29, 1906.

G. HARDEN.

INVALID BED.

APPLICATION FILED Nov. 23, 1905.

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A Strom/wg vact description of the invention, such as will lcross-bars 5 and 6 and by an intermediate UNITED sTATEs PATENT oEEioE.

GEORGE HARDEN, OF TOLEDO, 5 OHIO. I

INVALID-BED.

Specification of Letters Patent.

Patented May 29, 1906.

Application filed November 23.1905. Serial No. 288.795.

To @ZZ whom, it may concern:

Be it known that I, GEORGE HARDEN, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Invalid-Beds; and I do declare the following to be a full, clear, and eX- enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in invalid-beds.

The object of the invention is to provide a bed constructed to permit the head section or portion thereof to be raised or elevated to various inclinations. y

Another object is to provide means whereby said head-section may be easily raised or adjusted and means for locking the same in its various elevated positions.

A further object is to provide means for retaining the tension of the bed-spring when the head-section thereof is in an elevated position.

With the above and other objects in view the invention consists of certain novel fea-- tures of construction, combination, and arrangement of parts, as will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a central longitudinal vertical sectionali view through the bed, showing in full lines the normal position of the same and in dotted lines the raised position of the back-supporting device or head-section of the bed. Fig. -2 is a plan view of the bed-frames with the spring removed and a portion of the upper frame broken away to illustrate the locking device for the elevating mechanism.' Fig. 3 is a vertical cross-sectional view on the line 3 3 of Fig. 1, showing the manner in which the bed rests on the bedstead, the latter being shown in dotted lines. Fig. 4 is an enlarged detail plan view of the combined bearing and guide plate of the elevating mechanism; and Fig. 5 1s a detail sectional view on the line 5 5 of Fig. 4, showing 'the stop-lug which limits the movement of the 'locking-plate.

Referring more p articularly to the drawings, 1 denotes the bed, which preferably consists of upper and lower frames 2 and 3. The lower frame 3 consists of longitudinally-disposed side bars 4, which are connected together and spaced apart by means of end cross-bar 7.

The upper frame 2 of the bed consists of longitudinally-disposed side bars 8, Iwhich are preferably formed in two sections orV parts 9 and 10. The parts of the side bars8 forming the head-section of the bed are connected together at their outer ends by an upper cross-bar 12, bolted or otherwise secured to the top side of the bar-sections 9, and by av bed, are connected together at their outer ends by means of a cross-bar 14, which is bolted or otherwise secured to the top side of said outer ends of the bars 10 and by the cross-bar 7 by means of bolts 1 5, which also connect said ends of the foot-section and the longitudinal side bars 4 of the lowerframe. The inner or meeting ends of the sections 9 and 10 of the upper longitudinal bar 8 are hingedly connected together on their upper side, as shown at 16. Stretched across the upper frame 8 of the bed and connected at its opposite ends to the cross-bars 12 and 14 is a bed-spring 17, which is preferably in the form of a woven-wire spring. If desired, additional'coil-springs 18 may be arranged beneath the woven-wire spring to support the same, said coil-springs being supported by means of rods 19, which pass beneath them and are secured at one end to the cross-pieces 7 of the lower frame and at their opposite ends to springs 20, as shown. These springs 20 are connected to the crossbar 14 ofthe u per frame 2.

Secured to t e top of the side rails 4 of the lower frame immediately below and midway between the ends of the bars 9 of the upper movable head-section are combined bearing and guiding plates 21. vided with alining bearings 22, in which are journaled the ends of a hollow elevatingshaft 24, on each end of which and adjacent to the plates 21 are secured spur-gears 25 arranged in position to engage the teeth of segmental rack-bars 26. The bars 26 are pivotally connected at their u per ends to the inner side of the bars 9 of t e removable head-section and are held in engagement These plates arepro- IIO with the teeth of the gears by means of lantifriction-rollers 27, which are journaled on the plates 21 and are adapted to revolve in a guide-recess 28, formed by an inwardlyprojecting lug 29 on one end of the plates 21, 'as shown. The segmental racks 26 being thus guided and held in position by means of the lug 29 and the roller 27 will u on the revolving of the gears 25 be elevate i, thus raising the head-section of the bed to the desired inclination. The shaft 24 and the gears 25 are revolved by means vof a crank-handle 30, which is removably engaged with either end of the hollow shaft 24 by an integral reduced stem or shank 31, which is adapted to be inserted into said ends of the shaft and which is provided with radially-disposed lugs 32, which when said stem or shank is inserted into the shaft will engage notches or recesses 33, formed in the latter.

In order that the gear-wheels 25 may be locked against movement, thus supporting Athe hinged head-section at any desired inclination, a suitable locking device is provided. Said locking device is here shown and is preferably in the form of a circular plate 34, pivotally mounted on .the plates 21 and provided on one side with a handle or thumbpiece 35 and with a radially-disposed notch or recess 36, in which the teeth of the gearwheels are adapted to turn when the plate is moved to a position of release. When it is desired to lock the gears against movement,

the plates 34 are turned to bring the solid portion of the same between two of the teeth of said gears, thereby preventing the revoluto permit the gear-wheels to turn in the notch tion of the latter. In order that the lockingplates 34 may always be turned to the proper position of release, a stop-lug 37 is formed on vthe under side of a projecting portion of said locking-plate, said'lug being adapted to engage a projection 38 on the bearing-.plate 21, to which said locking-plate is pivoted, th ereby limiting the movement of the lockingplat'e and holding the same in proper position or'recess 36.

In order that the tension oi' the wovenwire spring will be maintained when the headsection of the bed is in an elevated position, a suitable holding or tension device is provided. Said device is here shown and is preferably in the form of a transversely-disposed saai 1s rod A38, which is secured to the wire spring, preferably by inserting said rod through the same and connecting said rod to the crosspiece 13 of the movable head-section by means of short flexible connections 39, preferably in the form of chains.

A bed having a movable head-section constructed as herein shown and described may be quickly and easily adjusted to comfortably support the occupant thereof in a reclining posture at any desired inclination.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a bed of the character described, the combination with the stationary foot-section of the bed, oi a movable head-section hinged to said foot-section, an elevating mechanism to raise said head-section, said mechanism comprising segmental racks and pinions, pivoted locking-plates for engaging the teeth of the pinions for locking the hinged section in adjusted position, said locking-plates each provided with av recess through which the pinions move, al stop-lug and a thumb-piece, and a iiexibleconnection for preventing the sagging of the woven-wire mattress when the hinged section -is elevated, substantially as described.

2. In a bed ofthe character described, a foot-section, a hinged head-section, a wovenwire mattress connected to said sections, a series of springs under said mattress, said springs being seated upon longitudinal wires 19, springs 20 connected to said wires, racks and pinions for elevating the head-section, pivoted locking-plates for locking the pinions, and a flexible connection 39 connected-to the woven-wire mattress and to a cross-bar to prevent the sagging of the mattress.

In testimony whereof I have hereunto set GEORGE HARDEN.

Witnesses:

Cr-rAs. R. CLAPP, EMMA BURMESTERrl IOO 

